| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2303 |
81.1%
|
| 2 | Did not smoke cigarettes | 263 |
9.3%
|
| 3 | Yes | 211 |
7.4%
|
| 4 | No | 63 |
2.2%
|
| Sysmiss | 108 |